RE: What are the most common reasons that Caesar ii diverges ?

The most common cause of divergence I've seen is support gaps. Most of the time for me, the gap is too large to be effective. The pipe will either not touch the support at all, or will not expand enough to cause enough friction to make a difference.

RE: What are the most common reasons that Caesar ii diverges ?

I'm not sure where you're located, but in this year's CAU-Express we are presenting a session on convergence issues and methods to resolve them. If you have registered for the newsletter, you should receive the announcements about these conferences.